Paige Thomason who is just 1.52m (5ft) , plunged the knife into the shoulder of Adam Stagg, then told police: ‘I would say I’m sorry, but I’m not.’

The 18-year-old had just ended a stormy relationship with Stagg who suspected she had another boyfriend, Exeter crown court heard. The 23-year-old was taken to hospital with the knife still protruding from his back following the fight outside Thomason’s house in Chivenor, north Devon, in October last year.

Mother-of-one Thomason (pictured), admitted unlawful wounding and was sent to youth custody for ten months.

Recorder Paul Derbyshire told her: ‘I accept some violence had been used to you but I cannot get away from the fact that you came outside with a large kitchen knife you embedded six or seven inches in his back, puncturing a lung and nearly killing him.’

Recorder Paul Derbyshire told her: ‘I accept some violence had been used to you but I cannot get away from the fact that you came outside with a large kitchen knife you embedded six or seven inches in his back, puncturing a lung and nearly killing him.’